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Natural Cone Formation for Fast Ignition of Laser Fusion |
| YANG Xiao-Qing1;LEI An-Le1,2;YU Wei1;TANAKA Kazuo2 |
| 1Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002Institute of Laser Engineering and Graduate School of Engineering, Osaka University, Osaka 565-0871, Japan |
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YANG Xiao-Qing, LEI An-Le, YU Wei et al 2008 Chin. Phys. Lett. 25 2151-2153 |
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Abstract We propose to utilize the leading pulse of a petawatt class laser to create a conic plasma channel in the dense plasmas. This plasma channel could serve as a natural cone to guide the main pulse to the cone tip, as behaves similarly to the physical Au cone. We estimate that the leading pulse of a petawatt
laser could create a natural cone with cone tip only about 100μm away from the edge of compressed core plasma. The natural cone formation should be compatible for a good uniform compression and efficient fast heating of the imploded fuel.
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| Keywords:
52.57.Kk
52.38.Hb
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Received: 19 October 2007
Published: 31 May 2008
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| PACS: |
52.57.Kk
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(Fast ignition of compressed fusion fuels)
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52.38.Hb
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(Self-focussing, channeling, and filamentation in plasmas)
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